summaryrefslogtreecommitdiffstats
path: root/testing/web-platform/tests/html/canvas/element/shadows/2d.shadow.canvas.alpha.html
blob: 18818fa726593489977d56fecd62edd2ab19290b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
<!DOCTYPE html>
<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
<title>Canvas test: 2d.shadow.canvas.alpha</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/html/canvas/resources/canvas-tests.js"></script>
<link rel="stylesheet" href="/html/canvas/resources/canvas-tests.css">
<body class="show_output">

<h1>2d.shadow.canvas.alpha</h1>
<p class="desc">Shadows are drawn correctly for partially-transparent canvases</p>


<p class="output">Actual output:</p>
<canvas id="c" class="output" width="100" height="50"><p class="fallback">FAIL (fallback content)</p></canvas>
<p class="output expectedtext">Expected output:<p><img src="2d.shadow.canvas.alpha.png" class="output expected" id="expected" alt="">
<ul id="d"></ul>
<script>
var t = async_test("Shadows are drawn correctly for partially-transparent canvases");
_addTest(function(canvas, ctx) {

  var canvas2 = document.createElement('canvas');
  canvas2.width = 100;
  canvas2.height = 50;
  var ctx2 = canvas2.getContext('2d');
  ctx2.fillStyle = 'rgba(255, 0, 0, 0.5)';
  ctx2.fillRect(0, 0, 100, 50);

  ctx.fillStyle = '#f00';
  ctx.fillRect(0, 0, 100, 50);
  ctx.shadowOffsetY = 50;
  ctx.shadowColor = '#00f';
  ctx.drawImage(canvas2, 0, -50);

  _assertPixelApprox(canvas, 50,25, 127,0,127,255, 2);

});
</script>